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Zhang J, Liu K, Gong X, Zhang N, Zeng Y, Ren W, Huang A, Long H, Xie Z. Transcriptome analysis of the hepatopancreas from the Litopenaeus vannamei infected with different flagellum types of Vibrio alginolyticus strains. Front Cell Infect Microbiol 2023; 13:1265917. [PMID: 38076457 PMCID: PMC10703188 DOI: 10.3389/fcimb.2023.1265917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 11/06/2023] [Indexed: 12/18/2023] Open
Abstract
Vibrio alginolyticus, one of the prevalently harmful Vibrio species found in the ocean, causes significant economic damage in the shrimp farming industry. Its flagellum serves as a crucial virulence factor in the invasion of host organisms. However, the processes of bacteria flagella recognition and activation of the downstream immune system in shrimp remain unclear. To enhance comprehension of this, a ΔflhG strain was created by in-frame deletion of the flhG gene in V. alginolyticus strain HN08155. Then we utilized the transcriptome analysis to examine the different immune responses in Litopenaeus vannamei hepatopancreas after being infected with the wild type and the mutant strains. The results showed that the ΔflhG strain, unlike the wild type, lost its ability to regulate flagella numbers negatively and displayed multiple flagella. When infected with the hyperflagella-type strain, the RNA-seq revealed the upregulation of several immune-related genes in the shrimp hepatopancreas. Notably, two C-type lectins (CTLs), namely galactose-specific lectin nattectin and macrophage mannose receptor 1, and the TNF receptor-associated factor (TRAF) 6 gene were upregulated significantly. These findings suggested that C-type lectins were potentially involved in flagella recognition in shrimp and the immune system was activated through the TRAF6 pathway after flagella detection by CTLs.
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Affiliation(s)
- Jingwen Zhang
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, Hainan University, Haikou, China
- Laboratory of Development and Utilization of Marine Microbial Resource, Hainan University, Haikou, China
| | - Kaifang Liu
- School of Fisheries, Xinyang Agriculture and Forestry University, Xinyang, China
| | - Xiaoxiao Gong
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, Hainan University, Haikou, China
- Laboratory of Development and Utilization of Marine Microbial Resource, Hainan University, Haikou, China
| | - Na Zhang
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, Hainan University, Haikou, China
- Laboratory of Development and Utilization of Marine Microbial Resource, Hainan University, Haikou, China
| | - Yanhua Zeng
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, Hainan University, Haikou, China
- Laboratory of Development and Utilization of Marine Microbial Resource, Hainan University, Haikou, China
- Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, China
| | - Wei Ren
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, Hainan University, Haikou, China
- Laboratory of Development and Utilization of Marine Microbial Resource, Hainan University, Haikou, China
- Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, China
| | - Aiyou Huang
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, Hainan University, Haikou, China
- Laboratory of Development and Utilization of Marine Microbial Resource, Hainan University, Haikou, China
- Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, China
| | - Hao Long
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, Hainan University, Haikou, China
- Laboratory of Development and Utilization of Marine Microbial Resource, Hainan University, Haikou, China
- Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, China
| | - Zhenyu Xie
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, Hainan University, Haikou, China
- Laboratory of Development and Utilization of Marine Microbial Resource, Hainan University, Haikou, China
- Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou, China
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Robinson KA, Orent W, Madsen JC, Benichou G. Maintaining T cell tolerance of alloantigens: Lessons from animal studies. Am J Transplant 2018; 18:1843-1856. [PMID: 29939471 PMCID: PMC6352985 DOI: 10.1111/ajt.14984] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/13/2018] [Accepted: 06/14/2018] [Indexed: 01/25/2023]
Abstract
Achieving host immune tolerance of allogeneic transplants represents the ultimate challenge in clinical transplantation. It has become clear that different cells and mechanisms participate in acquisition versus maintenance of allograft tolerance. Indeed, manipulations which prevent tolerance induction often fail to abrogate tolerance once it has been established. Hence, elucidation of the immunological mechanisms underlying maintenance of T cell tolerance to alloantigens is essential for the development of novel interventions that preserve a robust and long lasting state of allograft tolerance that relies on T cell deletion in addition to intra-graft suppression of inflammatory immune responses. In this review, we discuss some essential elements of the mechanisms involved in the maintenance of naturally occurring or experimentally induced allograft tolerance, including the newly described role of antigen cross-dressing mediated by extracellular vesicles.
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Affiliation(s)
- Kortney A. Robinson
- Center for Transplant Sciences, Massachusetts General
Hospital and Harvard Medical School, Boston, MA
| | - William Orent
- Center for Transplant Sciences, Massachusetts General
Hospital and Harvard Medical School, Boston, MA
| | - Joren C. Madsen
- Center for Transplant Sciences, Massachusetts General
Hospital and Harvard Medical School, Boston, MA.,Division of Cardiac Surgery, Department of Surgery,
Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Gilles Benichou
- Center for Transplant Sciences, Massachusetts General
Hospital and Harvard Medical School, Boston, MA
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